| Discovery [1][2] | |
|---|---|
| Discovered by | MLS |
| Discovery site | Mount Lemmon Obs. |
| Discovery date | July 26, 2020 |
| Designations | |
| 2020 OY4 | |
| NEO · Apollo [1][2] | |
| Orbital characteristics [2] | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 6[2] · 7[1] | |
| Observation arc | 2 days |
| Aphelion | 1.5623 AU |
| Perihelion | 0.6873 AU |
| 1.1248 AU | |
| Eccentricity | 0.3889 |
| 1.19 yr (436 d) | |
| 257.94° | |
| 0° 49m 34.32s / day | |
| Inclination | 2.1148° |
| 305.50° | |
| 98.703° | |
| Earth MOID | 0.0000879 AU (0.034 LD) |
| Physical characteristics | |
| 2–5 m[3] | |
| 30.18[2] 30.35[1] | |
2020 OY4 is a very small asteroid classified as a near-Earth object that passed within 21,850 miles (35,160 km) of the surface of Earth on July 28, 2020, with a fly-by speed of 12.4 kilometres (7.7 mi) per second.[3] The car-sized asteroid posed no risk of impact to Earth, but it did pass within the orbit of satellites in the geostationary ring at 35,785 kilometres (22,236 mi) above Earth's equator.[4]
The asteroid was discovered July 26, 2020 using the Mount Lemmon Survey telescope in the Santa Catalina Mountains northeast of Tucson, Arizona.[3] The next encounter closer than the Moon is predicted to occur July 30, 2055 at a distance of 200,000 kilometres (124,000 mi) or more.[2]
References
[edit]- ^ a b c d "2020 OY4". Minor Planet Center. Retrieved 9 September 2020.
- ^ a b c d e f "JPL Small-Body Database Browser: (2020 OY4)" (2020-07-28 last obs.). Jet Propulsion Laboratory. Retrieved 9 September 2020.
- ^ a b c "CAFS for 2020 OY4". ESA's NEO Coordination Centre. Retrieved July 28, 2020.
- ^ Malik, Tariq (July 28, 2020). "An asteroid the size of a car just zipped by Earth in close flyby". Space.com.
External links
[edit]- 2020 OY4 at NeoDyS-2, Near Earth Objects—Dynamic Site
- 2020 OY4 at ESA–space situational awareness
- 2020 OY4 at the JPL Small-Body Database
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction